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    The Effect of an Added Mass on the Frequency Shifts of a Clamped-Clamped Microbeam for Bio-Mass Detection

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    Type
    Conference Paper
    Authors
    Bouchaala, Adam M.
    Nayfeh, Ali H.
    Younis, Mohammad I. cc
    KAUST Department
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2016-12-05
    Online Publication Date
    2016-12-05
    Print Publication Date
    2016-08-21
    Permanent link to this record
    http://hdl.handle.net/10754/623239
    
    Metadata
    Show full item record
    Abstract
    We present analytical formulations to calculate the induced resonance frequency shifts of electrically actuated clamped-clamped microbeams due to an added mass. Based on the Euler-Bernoulli beam theory, we investigate the linear dynamic responses of the beams added masses, which are modeled as discrete point masses. Analytical expressions based on perturbation techniques and a one-mode Galerkin approximation are developed to calculate accurately the frequency shifts under a DC voltage as a function of the added mass and position. The analytical results are compared to numerical solution of the eigenvalue problem. Results are shown for the fundamental as well as the higher-order modes of the beams. The results indicate a significant increase in the frequency shift, and hence the sensitivity of detection, when scaling down to nano scale and using higher-order modes.
    Citation
    Bouchaala A, Nayfeh AH, Younis MI (2016) The Effect of an Added Mass on the Frequency Shifts of a Clamped-Clamped Microbeam for Bio-Mass Detection. Volume 6: 12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. Available: http://dx.doi.org/10.1115/detc2016-59667.
    Publisher
    ASME International
    Journal
    Volume 6: 12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
    DOI
    10.1115/detc2016-59667
    Additional Links
    http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2592055
    ae974a485f413a2113503eed53cd6c53
    10.1115/detc2016-59667
    Scopus Count
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program

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